Glass-grinding machine



E. A. AND A. T. RYON.

GLASS GRINDING MACHINE.

APPLICATION FILED JUNE 12, 1919.

Patented Mar. 22, 1921.

2 SHEETS-SHED l E. A. AND A. T. RYON. GLASS GRINDING MACHINE. APPLICATION FILED JUNE I2. Isra.

Patented Mar. 22

2 SHEETS-SHEET 2 WITNESSES .25W if@ UNITED STATES PATENT OFFICE.

EDWARD A. RYON AND ANNA T. RYON, OF PITTSBURGH, PENNSYLVANIA, ASSIGNORS T0 QUALITY GLASS COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF DELAWARE.

Specification of Letters Patent.

GLASS-GRINDING MACHINE.

Patented Mar. 22, 1921.

To all lwhom it may concern Be it known that we, EDWARD A. RYoN andlANNA T. RYoN, citizens of the United States,residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Glass-Grinding Machines, of which the following is a'specification. Our invention consists of an improvement 1n glass grinding machines for engraving .tumblers or Similar cylindrical glass articles, and has for its object to provide means for quickly and cheaply ornamenting the surface of such articles by direct application of a grinding or cutting wheel or wheels.

The improvement consists generally in providing a rotatable holder for the ware V having means for placing on and removing the ware therefrom,` means for shifting the ware longitudinally when it is desired to engrave other. than continuously annular lines, cam mechanism for effecting alternating back and forth longitudinal movement to the ware holder and ware, one or more engraving wheels, and a rotating driven shaft therefor, with means providing for automatic adjustment of the wheels, automatic mechanism for terminating the operation, and other features of construction and advantage as shall be more fully hereinafter of the arrows;

. Fig. 5 is a detailsectional view of the clutch shaft and its latch mechanism;

Fig. 6 is an enlarged sectional detail view of the cutting wheels and their mounting;

Fig. 7 is a sectional view on the line VII-#VII of Fig. 6; and l Fig. 8 is a horizontal section on the line VIII,l VIII of Fig. 1.

The framework of the machine consists of a suitable base 2 upwardly from which ex- Mtend the two main housing arms or frames vto 3-4 to the tops of which are connected by bolts or otherwise, the inwardly extending cross arms 5-g-6 respectively provided with .the intervening clearance opening 7. The main drive shaft 8 is ournaled in housing 4 and an intervening bearing 9 secured to base 2 and provided at its upper end with a slide bearing 10 in which is slidably mounted the main supporting bar 11 of the ware carrier.

The outer end of shaft 8 is provided with a loosely mounted pulley 12 having a clutch 13 adapted to make frictional driving connection between the pulley and a clutch cone 14. Said clutch is splined onl shaft 8, as indicated at 15, and is provided with an annular groove 16 for engagement of lugs 17 of a clutch lever 18 having a handle 19. The spring 20 is connected at one end to the clutch lever 18 and at the other end to a fixed projectingattachment of the frame 21,

on lever 18 to release the clutch.

The inner portion of the clutch 14 is pro vided with a cone shaped terminal 22 adapted to engage a terminal roller 23 of thrust rod 24 vertically movable in guiding bearings 25-25 extending from housing 4. Thrust rod 24 is preferably made of two sections jointed at 26 by means of a telesco ing connection and a securing set screw 2i, whereby to adjust the thrust rod accurately perform its functions. The upper end of ythe thrust rod is provided with a half round or forked terminal 28 engaging under the end of cutter wheel shaft 29, so as to raise it in its housing 4 to throw the cutting wheels upwardly from engagement with the ware, upon inward movement of cone 22.

Cutter wheel shaft 29 is, as shown, disw posed generally in a line parallel with the longitudinal tapered face of the ware A, one end being journaled in a bearing 30 which is vertically slidable inthe upper portion of housing 4, the other end being journaled in a bearing 31 which is pivoted by In the construction shown i utilize a plurality of cutters 34. 34a and 34". although it will be understood that any desired number may be employed. Ordinarily. one of the cutters, as the middle one. is tixedly mounted by anysuitable means as threaded connections 35 with sleeve 36 secured bv pins 37 to shaft 29. In this manner. cutter 34 is rigidly connected with the snar't and may be raised and lowered with it toward anu from the ware.

The supplemental cutters 34a and 34b :1re adapted to have a limited degree or relative lateral movement, so as to compensate for any variations in the surface or' the ware. for which purpose their hubs are provided with a lost motion enlargement 38 around the sleeve 36. and are also provided with projecting hubs 39. Hubs 39 in turn are provided with a series or' annular holes 40 into which project pins 41. with a corresponding amount of clearance. irom drive rings 42 also secured to sleeve 36 and shaft 29 by pins 37. By such connection. the several cutting wheels are rotatably connected with shaft 29. The relatively adjustable wheels 34 and 34b are normally pressed toward the ware by studs 43 having terminal rollers 44 engaging the peripheries or' hubs 39, as shown in Figs. 6 and T. and studs 43 are mounted for vertical movement 1n guiding openings or sockets 44 in cross bars 5 and 6 respectively, with an intervening spring 45. By this means constant downward pressure is normally exerted on the adjustable cutting wheels. and they are also cushioned to provide for a limited degree or' upward movement away from the ware upon inward movement of cam 22. as described.

The ware A is held by a rotating disk 46. preferably of suitable resilient material upon which the ware is thrust. disk 46 being splined upon shaft 47 and with an inner cushioning spring 48 to insure engagement and compensation for any variations in the tapered interior diameter or' the ware. lts edge is thrust against a bearing disk 49 of suitable material forming a part of the relatively adjustable disk 50 which is freely journaled by its hub on shaft 47. ln this manner it is capable of relative annular adjustment on the shaft as to a iixedlv secured disk 51 provided at its upper end with a spring actuated latch 52 pivoted to the disk 51 at 53. Disk 50 is provided with a plurality of notches 54. either one of which may be engaged by latch 52. whereby to rotate the ware around bearing disk 46 to any desired position with relation to disk 51. and as to its previous position on shaft 47. Such adjustment is provided for the purpose of making the second curved series of design lines on the ware shown in Fig. 2.

Alternating longitudinal movement is imparted to the ware carrying i'rame and the vare itself `iuring cutting action of the Yvlieels by action or" a suitably designed cam viieel A55 held bv key 56 on shaft 8, and idapted to engage a roller 57 on reciprocaile carriage l1. .l spring 58 secured at 59 o standard slide bearings 10 and at 60 to the `arriage traine. tends to always thrust the -arriage inwardly with its ioller against the indulating face or cam 55. so that as the cam "otates i :orresponding back and forth aovement will be imparted to the frame.

"or the purpose of automatically disenraging the cutter wheels from contact with he ware at the end of one complete revoluiion thereof. clutch lever 18 is connected `vith a controlling locking bar or pin 61, by angagement of the upper and lower sides of `ne shifting lever with a recessed portion it the end of the bar 61. as indicated at 62. Pin 61 is mounted for longitudinal thrustiig movement 1n a supporting guide 63 extending outwardly from housing 4, as fnown. and the other end portion of pin 61 s provided with a transverse locking notch i4. .4 holding plate 65 is pivoted at 66 to wearing 63. and is normally thrust into notch 14 by action of spring 67 (see Fig. 4). Its nner end projects bevond pin 61 into range r an abutment 68 secured to cam 55, which iputinent at the termina-tion of the cutting iperation comes into engagement underneath with the terminal of blade 65. raising it out it engagement with notch 64. allowing pin \`1 to travel forwardly beyond the blade uniei action or spring 20. At the saine time, lie clutch 14 comes away from engagement vith driving pulley l2 and cone 22 raises `oller :3. and lifts shaft 29 and the cutter vneels away trom the ware.

'When it is desired to cut the straight aniular lines on the ware. as indicated in Fig. I. the cam 55 is merely removed. whereupon, -.he ware is rotated annularly without longitudinal back and forth movement. as will )e readily understood. The ware itself is fapaple or idiustment with its holding .neclianism bv adjusting the entire carriage rame l1 in its oearin 10 back oi' forth, ind securing it thereon by means of ay secur- ;ng set screw 69. ln operation. it will be inderstood that the curved lines may be cut successively on any desired number of pieces `)I ware by the cam controlling operation ipove described. the ware then being realaced for subsequent cutting of the desired straight lines.

The ware .4 is clamped to position on its fielding mechanism by an end bearing head '0 mounted on the inner end of an adjusting et screw 'T1 with an intervening cushioning spring F2. whereby to prevent rigid pressure ind possible breakage of the ware. Such `lamping means is mounted on the upper end of a carrying arm 73 pivoted to the end ir bar .1 at T4. and provided with a releasable locking pin 75. By. this means the arm 73 may be unlocked and thrown outwardly each time for 4removal and application of a new piece of ware.

The rotation of the ware by its shaft 47 is through a trainof gearing 76, 77, 78, by which motion. is transmitted from the main driving shaft S. lVhen the ware is adjusted for operation, assuming pulley 12 to be driven, clutch lever 18 is thrust outwardly by the operator, bringing the clutch 14 into driving engagement -with the pulley, at the same tlme lowering the cutting wheels by retraction' of coneJ 22 and drawing pin 6l outwardly, allowing latch 65 to drop into notch 64. The lever may then be released and the operation continued for one complete revolution of the ware and cam 55 until latch blade 65 is automatically released by cam abutment v68 at the completion of the cutting operation, whereupon the clutch l be disconnected as described, the cutters will bepraised, and the 'ware' may then be removed. Y

The construction and operation of the machine will be readily understood from the foregoing description, and it will be found to accomplish its desired objects in a rapid,

successful and economic manner, while many variations in the-desired design may be made by the use of various'fo'rms ofcam 55, or of the number and spacing of the cutting wheels 34.

The invention may be' variously changedA j such changes are to be considered as within the scope of the following claims.

What we claim is: 1. A glass grinding machine having a horizontally rotatable and longitudinally movable Vware holder, gearing therefor,

clutch mechanism. for connecting the gearing with a source of power having a cone shaped terminal and a power'driven cutter having en aging and disengagiong mechanism opera le by said terminal in conformj -ity with the clutch mechanism.

Y 2. A gla grinding machine', having a horizontally rotatable and longitudinally movable .ware holder, gearing therefor, clutch mechanism for connecting the gearingwith a source of power havinga cone shaped shifting portion, a power driven cutter and means engagin thel shifting portloii of the clutch for'dlsengaging the.cut

tei' from the ware.

3. ,A glass grinding machine having a ro-- tatableware holder, gearing therefor, clutch mechanism for connecting the gearin with a source of'power having a cone s aped shifting portion, an independently .operating ower driven shaft having a cutterwhee thereon, and means engaging said shaft and the shifting portion of the clutch engaging t e clutch.

. holder and 'a source of power having a cone shaped shifting lportio-n, an independently operating power driven shaft having a cutterwheelthereon located above the ware holder and adapted to approach and engage the ware when the clutch mechanism is connected, and means engaging said shaft and the shifting portion of the clutch for moving the shaft and cutter away from the ware when the clutch mechanism is disconnected.

5. A glass grinding-machine having a rotatable ware holder, gearing therefor, clutch mechanism for connecting the gearing with a source of power having a shifting cone, a vertically movable power driven shaft having a cutter-wheel thereon, and a shift rod engaging said shaft and having a roller engagirg the shifting cone.

6. glass grinding machine .having a rotatable ware holder, gearing therefor, clutch mechanism for connecting the gearing with a source of power having a shifting cone, a vertically movable power driven shaft having a cutter-wheel thereon, a spring for pressing the cutter-wheel toward the ware, and a shift rod engaging said shaft and havirg a roller engaging the shifting cone.

`7. glass grindingmachine having a rotatable ware holder, gearing therefor, clutch mechanism for connecting the gearing with a source of power having a shifting cone, a

vertically movable power driven shaft having a fixedand a laterally movable'cutter- -wheell thereon, and means engaging the shifting cone for moving'the shaft and cutters away from the ware.

8. A glass grinding machine having a reciprocable ware holding frame provided with a rotatable ware holder, a cutter, a main drivin sha-ft geared with the ware holder and aving a clutch and a driving gear therefor, a lcam on the main shaft engaging the ware holding frame, and means operated b v the camfor automatlcally dis- 9.- A glass grinding machine having a reciprocable ware holding frame provided withl a rotatable ware holder, a cutter, a main drivin shaft geared with the ware aving a clutch and a driving gear yitherefor, a cam on the main shaft enaging the ware holding frame, a clutch ever provided with a notched locking pin, a latch therefor,.and an abutment on the cam for engaging the latch to release the clutch.

10. A lass grinding machine having a-l reciproca le ware holding frame provided withV a rotatable-ware holder, a relativel adjustable cutter, a main,v driving sha 130 geared With the Ware holder and having a clutch provided with a lifting cone. a looselv mounted clutch pulley, a lifting rod for the cutter having a terminal engaging the lifting cone, a cam on the main shaft engaging the Ware holding frame. a clutch lever having a locking pin, a latch therefor. and an abutment on the cam for engaging the latch to release the clutch.

1l. A glass grinding machine having vi reciprocable ware holding frame provided With a rotatable ware holder. a relatively adjustable cutter. a main driving shai't geared with the Ware holder and having a clutch provided with a lifting cone. 1 loosely mounted clutch pulley. a lifting rod for the cutter having a terminal engaging the lifting cone. a cam on the main shaft engaging the Ware holding i'rame. a clutch lever having a locking pin. a latch therefor. an abutment on the cam for engaging the latch to release the clutch. and a retracting spring for the Ware holding trame and clutch lever respectively.

12. A glass grinding machine having i reciprocable Ware holding trame provided with a rotatable ivare holder. means tor annularly adjusting the ware holder and ware. a relatively adjustable cutter. a main driving shaft geared with the ware holder and having a clutch provided 'vith a lifting cone, a loosely mounted clutch nullev. i lifting rod for the cutter having a terminal engaging the lifting cone. a cam on the. main shaft engaging the vare holding frame, a clutch lever having fi locking nin. a latch therefor. and an ahutment on the cani for engaging the latch to release the clutch.

13. In combination` a frame` a slide bearing thereon. a i'eciprocahle vare holder mounted in the slide bearing having a rotating shaft. a cutter and shaft therefor adjustably mounted above the ware holder. .l main driving shaft geared with the ware holder shaft and having a clutch provided With a lifting cone, a loosely mounted clutch pulley, a lifting rod t'or the cutter shaft having a terminal engaging the lifting cone. a cam on the main shaft having an abutment. a co-acting roller on the ware holding frame. a clutch lever having a locking pin. a latch therefor extending into range ot the cam abutment, a retracting spring tor the ware holding frame, and a retracting spring t'or the clutch lever.

14. In combination with a driven cutter- Wheel, la relatively adjustable ware holding frame provided with a power driven Ware iolder ind a shitting cam. and means for securing the frame in retracted position with felation to the shifting cam.

E. in combination. a supporting standird. a ware holding frame slidably inolinted herein. a shitting cam.` a spring adapted to torce the trame toward the cani. a securing set screw tor holding the frame away from 1e cani. ti rotating shaft provided with a vare holder. and a terminal clamping arni aivoted to the trame and having a ware en- :aging clamp.

il. ln combination. a supporting stand- ;rd. .i `vai-e holding frame slidably mounted herein. .i shifting cani. a spring adapted to 'oi-ce the trahie toward the cam. a securing 2et screw ior holding the frame away from ne cani. .l rotating shaft provided with a rare holder. means for rotatabl)v adjusting :nd securing the ware holder on the shalt. ind a terminal cla-inning arm pivoted to the rame :ind having a ware engaging clamp.

' h a machine ot the class described. a

lwer llriven cutter shaft having a lixedlv lttached futter-wheel. and a laterally ad- `istahle rotatahlv engaged cntter-wheel op- 4rahle therewith.

ln a machine of the class described. a `ower llriven cutter shaft having a lixedlv ttaclied cutter-wheel. a laterallv adjustable "itatahlv aigaged cutter-wheel having a tun. ind i spring-pressed roller bearing hercon.

n a machine of the. class described. a atei'allv Tnovalile power driven cutter .shaft .aving -i ooselv mounted cutter-wheel. and

:nih secured to the shaft having lost mo- :on `lriving engagement with the cutlerneel.

.13. in a machine ot' the class described. a Viterallv movable power drveii cutter shalt aving i .ooselv nounted cutter-wheel. neans tor exerting Spring pressure thereto` lnd :i ,ino secured to the shaft having lost notion Ilriving engagement. with the cuttervheel.

.1. In a machine or' the class described. a aterallv movable power driven cutter sha ft aving a looselv '.nounted cutter-wheel, a nib thereon having pin openings` a spring- `iressed `v)in having a roller engaging the Autter-wheel hub. and a rotating hub on the aower shaft having pins engaging the pin loenings with lost motion clearance.

'Si testimonv whereof we hereunto aflix llr signatures.

lDlVARD A. RYON. NNA T. RYON. 

